I will build or fix vibe coded web app


About this gig
Your AI built web app is close to launch, but broken features, failed API calls, confusing code, or deployment problems are holding it back.
I will diagnose the root cause, fix the issue, and turn the prototype into stable software people can use. I work with existing codebases and improve what you have without rebuilding everything.
I can help with bugs, crashes, incomplete features, authentication, roles, API and database issues, responsive UI, performance, security hardening, deployment, webhooks, payments, and third party integrations.
This is a good fit for apps made with Lovable, Bolt, v0, Replit, Cursor, or similar AI coding tools. I do not represent or partner with these tools; I help make the software work and remain maintainable.
I am a senior product engineer with 11+ years in software development, building and improving mobile, web, backend, SaaS, fintech, and internal business systems. I can take ownership from diagnosis through tested delivery and handover.
Message me before ordering with the app link or repository, the current problem, and your target outcome. Larger rescues and unclear scopes are best handled with a custom offer.
Get to know Yuvraj Sonawane
I provide AI consulting and build mobile apps, websites, and custom softwares
- FromIndia
- Member sinceSep 2026
- Avg. response time1 hour
Languages
Hindi, English
My Portfolio
FAQ
Can you work with an existing AI built web app?
Yes. I can review and improve code from Lovable, Bolt, v0, Replit, Cursor, or another stack. I keep working parts where possible and explain any larger changes before making them.
Do I need to share the source code?
For a real fix, I need repository access or a reproducible environment plus the error details. Share access through an appropriate secure method; never paste passwords or private keys into Fiverr messages.
Will you rewrite the whole app?
Usually no. I first isolate the real problem and preserve working parts. If the structure makes a safe fix impossible, I will explain why and propose the smallest practical refactor or staged rewrite.
Can you help deploy the app?
Yes. I can prepare environment settings, fix build and deployment issues, and help launch on your existing hosting or cloud account. You keep ownership of your accounts and secrets.
Can you sign an NDA for confidential code?
Yes, I can review a reasonable NDA before we start. Please share only the access and project information needed for the agreed work, and keep passwords and private keys out of Fiverr messages.

